Structural probabilistic model of fatigue cumulative damage under uncertain cyclic load

doi:10.11990/jheu.201509085

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	Structural probabilistic model of fatigue cumulative damage under uncertain cyclic load
	Gao, Jianxiong; An, Zongwen; Kou, Haixia
刊名	Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
	2017-02-25
卷号	38 期号:2 页码:263-268
关键词	Damage detection Fatigue damage Fatigue of materials Probability density function Reliability Reliability theory Cumulative damage Fatigue cumulative damage Fatigue life prediction Probabilistic fatigue Probabilistic modeling Product reliability S-N curve Structural-probabilistic models
ISSN号	10067043
DOI	10.11990/jheu.201509085
英文摘要	Probabilistic fatigue cumulative damage theory is the key issue of product reliability assessment and fatigue life prediction, which focuses on the probability distributions of the instantaneous cumulative damage and the critical damage. Based on the fundamental relationship between stress and fatigue life (that is, the equation of S-N curve), a probability density function of fatigue life was derived from the probability density function of stress; Then, a probabilistic model of fatigue cumulative damage was proposed based on the Miner's rule; Finally, the validity of the proposed model was verified by a practical case. The result shows that the distribution of fatigue cumulative damage is affected by the external factors (characteristics of the load) and the internal factors (fatigue performance parameters of material), and the proposed model can provide a theoretical basis for reliability design and fatigue life prediction. © 2017, Editorial Department of Journal of HEU. All right reserved.
语种	中文
出版者	Editorial Board of Journal of Harbin Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114031]
专题	机电工程学院
作者单位	School of Mechatronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Gao, Jianxiong,An, Zongwen,Kou, Haixia. Structural probabilistic model of fatigue cumulative damage under uncertain cyclic load[J]. Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,2017,38(2):263-268.
APA	Gao, Jianxiong,An, Zongwen,&Kou, Haixia.(2017).Structural probabilistic model of fatigue cumulative damage under uncertain cyclic load.Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,38(2),263-268.
MLA	Gao, Jianxiong,et al."Structural probabilistic model of fatigue cumulative damage under uncertain cyclic load".Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University 38.2(2017):263-268.